What hand is this?

Question

I've been starting to learn poker recently (as a reference, I tend to use this list of hands). I was watching a tournament and this hand showed up.

One player has a 99, the other a JJ. I understand the JJ wins, but why does the dealer raise the K, Q & 7?

Thanks]2

Answer 1

A poker hand is 5 cards, so the dealer is showing that the winning hand is JJKQ7. If, instead, the winning hand had been AhKh for a flush, the dealer instead would have raised the Qh 4h and 7h.